NGK 58988 Direct Ignition Coil Boot

NGK Coil on Plug Boot for OE-Style Ignition Service

The NGK Coil on Plug Boot, part number 58988, is a premium direct ignition coil boot built for select Hyundai and Kia applications. It is made to support reliable spark transfer in coil-on-plug ignition systems while matching OE-level durability and performance expectations.

NGK’s Coil on Plug Boot line focuses on ignition service parts for domestic and import vehicles, drawing on the brand’s long OE background in spark plugs, ignition coils, glow plugs, and related ignition hardware. This NGK 58988 boot is a direct replacement-style component for vehicles that use coil-on-plug ignition without traditional plug wires.

Key Features

• Premium-grade direct ignition coil boot
• Black boot and black seal finish
• 2.13 in. length
• Built for coil-on-plug ignition service
• OE-focused NGK ignition product line
• Part number 58988 / CPB-K006

Vehicle Fitment

• Fits 2007-2012 Kia Rondo, N/A; no wires required; NGK Coil on Plug Boot.
• Fits 2007-2010 Kia Magentis, N/A; no wires required; NGK Coil on Plug Boot.
• Fits 2007-2010 Kia Optima, N/A; no wires required; NGK Coil on Plug Boot.
• Fits 2007-2009 Hyundai Santa Fe, N/A; no wires required; cylinder(s) 2, 4, 6; NGK Coil on Plug Boot.

Detailed Description

NGK 58988 is a direct ignition coil boot for vehicles using coil-on-plug ignition architecture. It is intended for service on Hyundai Santa Fe, Kia Optima, Kia Magentis, and Kia Rondo models listed in the fitment data, including applications where plug wires are not used. The compact 2.13-inch boot length and premium construction support a clean OE-style replacement for ignition maintenance.

This part cross-references DENSO Auto Parts (e.g., 671-6313) for the same application. If you are searching for an NGK coil on plug boot for Kia Optima or Hyundai Santa Fe ignition repair, part number 58988 is the reference to verify against your vehicle’s original boot style and cylinder location.

What It Helps Address

• Misfire caused by worn or damaged coil boot insulation
• Weak spark transfer at the spark plug connection
• Cracking, hardening, or heat-related boot deterioration
• Ignition service needs on coil-on-plug systems without plug wires
• Restoration of proper ignition connection on listed Hyundai and Kia models

Installation Notes and Tips

Verify the original boot length, seal style, and cylinder application before installation. For the 2007-2009 Hyundai Santa Fe fitment, confirm the cylinder locations listed in the notes. Inspect the ignition coil and spark plug condition at the same time, since boot wear often appears alongside related ignition issues.

Use the vehicle’s service information for the correct removal and reinstallation procedure. Clean mating surfaces and ensure the boot seats fully on the coil and spark plug ends to maintain a secure connection.

Quality Assurance

NGK builds this coil on plug boot as part of its OE-focused ignition product range, using manufacturing and distribution systems established for automotive replacement parts. The brand’s long history in ignition components supports consistent fitment and performance standards for the listed applications.